Question

If a plane is inclined to both the reference planes then the traces would meet at _________ line except the plane perpendicular to picture plane.

(a) XY reference

(b) Vertical reference

(c) Above the XY reference plane

(d) Below the XY reference plane

I have been asked this question by my school principal while I was bunking the class.

This interesting question is from Projection of Oblique Plane topic in section Projection of Planes of Engineering Drawing

Answer 1

Right choice is (a) XY reference

To explain I would say: If a plane is perpendicular to picture plane which perpendicular to both the reference planes the vertical trace and horizontal trace will not intersect on xy reference line but intersect on vertical reference line.